Subatomic Particles
Tiny particles that make up atoms.
Main types: Protons, Neutrons, Electrons.
Protons
Found in nucleus
Positive charge (+1)
Mass ~1 amu
Neutrons
Found in nucleus
No charge (neutral)
Mass ~1 amu
Electrons
Found outside nucleus
Negative charge (-1)
Very small mass
Summary
Protons + Neutrons = Nucleus
Electrons orbit nucleus
Together, they form atoms.

Subatomic_Particles_Basic for grade 8.pptx